Date: Wed, 08 Nov 2000 19:56:36 +0200
From: "Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il>
Sender: halo1 AT zahav DOT net DOT il
To: ad354 AT FreeNet DOT Carleton DOT CA (James Owens)
Message-Id: <1659-Wed08Nov2000195636+0200-eliz@is.elta.co.il>
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CC: djgpp AT delorie DOT com
In-reply-to: <8ubi1t$j7k$1@freenet9.carleton.ca> (ad354@FreeNet.Carleton.CA)
Subject: Re: InfoZIP vol label: force it, but please advise
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> From: ad354 AT FreeNet DOT Carleton DOT CA (James Owens)
> Newsgroups: comp.os.msdos.djgpp
> Date: 8 Nov 2000 12:47:57 GMT
> 
> I'm of the printf school of debugging, but I can't remember the command to
> convert an integer to a string

??? It's printf, of course ;-)  Just use the %d format specifier.

> If I replace the line with
> 
> (uO.volflag == 1 && nLabelDrive > 2)) /* -$, but not A: or B: */
> 
> then the program labels the drive if I run from A:\ prompt, and does not
> label if I run from C:\ prompt.  So I'm still inclined to suspect
> isfloppy().

It seems so.  Try printing every value inside isfloppy, that might
give a clue.  Or throw together a simple test program which just calls
isfloppy on a drive of your choice, and see what that does.

> But it gets worse. When I run UNZIPSFX with this change and only this
> change, the unzip process fails after a few filenames, complaining of a
> bad offset.

Perhaps some other code assumes that the labeling never works.

> This tempts me to give up.

Don't give up.  It always gets worse before it gets better ;-)